Ferrida LDM 50M, Руководство пользователя

Страница: 9 / 48

9
ENGLISH
AUXILIARY FUNCTIONS
Backlight
Press
Unit
to turn on and off backlight, to read data on display clear-
ly in darkness.
Unit Change
Long press
Unit
to change distance unit between m, ft, in and ft+in
Addition/Subtraction
Take a measurement, then press +/- or long press it, addition/
subtraction symbol will appear on display, then press
MEAS
ON
button
to take the second measurement, the second value will be auto-
matically added to/subtracted from the first one.
This process can be repeated as required.
Cancel/Clear measurement
When measuring, press
CLEAR
OFF
to cancel the last action or clear me-
asured data.
Historical Data
Press to view historical data, the last 20 measured data will be
displayed in reversed order.
Press
CLEAR
OFF
to quit historical data viewing.
TROUBLESHOOTING
All errors or failures will be shown as codes. The following table
explains the meaning of codes and solutions.
Code Cause Corrective Measure
204 Calculation error Refer to user manual, repeat the
procedures.
208 Excessive current Please contact your distributer
220 Battery low Replace new batteries.
252 Temperature is
too high
The external temperature for the
instrument should be kept at
0°C-40°C
253 Low temperature Warm up the device to meet work
conditions.